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Presentation on theme: "Biomes."— Presentation transcript:

1 Biomes

2 Levels of Ecological Organization
Organisms Species Population Community Ecosystem Biome Biosphere

3 Biomes temperature & precipitation
Biome: groups of ecosystems with similar climates and organisms Climate is defined as weather patterns over a long period of time temperature & precipitation There are terrestrial (land) biomes as well as freshwater & marine biomes

4 Biome Vegetation Temperature & Precipitation

5 Biome Vegetation Latitude & Altitude
Latitude: Distance north or south of the equator measured in degrees Altitude: Height of an object above sea level

6 Biome Vegetation Latitude & Altitude

7 Terrestrial Biome Map

8 Terrestrial Biomes 1. Tropical & Temperate Rain Forests
2. Temperate Deciduous Forests 3. Taiga (Boreal or Coniferous Forest) 4. Tropical Grassland (Savanna) 5. Temperate Grassland (Prairie) 6. Chaparral (Scrubland) 7. Desert 8. Tundra

9 Types of Aquatic Biomes
Marine Aquatic Biomes: Coastal Wetlands Estuaries Marshes Swamps Shores Coral reefs Oceans Freshwater Aquatic Biomes: Lakes and Ponds Wetlands Marshes Swamps Rivers (& Streams)

10 Tropical Rain Forest Around the Equator- SE Asia, Central & S. America, Africa Wet, Hot, & Humid > cm rain/year Strong sunlight all year Nutrient poor soils (fast decay) >1/2 of worlds plant & animal species Produce 40% of Earth’s oxygen and~1/4 of all medicines Covers 7% Earths surface (used to be 20%)

11 Temperate Rain Forest Pacific NW US (Wa), Central Europe, Australia, New Zealand High Precipitation & Humidity; Moderate Temps (cool and moist) Evergreen trees covered in lichens & mosses Ferns Frogs, bears, wolves, red pandas

12 Temperate Deciduous Forest
North Eastern US, Western Europe, Eastern Asia Extreme temp differences between winter & summer 4 distinct seasons Trees lose their leaves Birch, maple, oak Deer, fox, coyote, chipmunks/squirrels

13 Taiga (Boreal Forest) Northern Europe, Asia and N.America
Largest biome Cold w/long winters & high snowfall Summers bring nearly constant daylight Coniferous Forest Moose, Bear, Wolves, Snowshoe Hare

14 Tropical Grasslands (Savannas)
Central S.America, Central Africa, N.Australia, India Wet & dry seasons, but warm year round Scattered trees, grasses, shrubs Giraffe, zebra, antelope, lions, hyenas Plants w/vertical leaves, large horizontal roots, thorns

15 Temperate Grasslands (Prairies/Steppes)
Interior of N. America, S. America, Asia & Africa Nutrient rich, fertile soils Slow decay Hot summers/cold winters Moderate rain, but not enough to support trees Tall & short grasses, flowers & herbs w/deep root systems Drought & Fire Antelope, bison, owls, prairie dogs & prairie chickens

16 Chaparral West coastal regions of the Mediterranean, US, Chile, Africa, Australia Temperate shrubland Dry, coastal climate, little/no rain in summer Small shrubs w/leathery leaves Herbs like Sage and Bay Animals adapted Quail, lizards, snakes

17 Deserts The Americas, Asia Australia, & Africa
Precipitation (rain) less than 25cm/year Scattered vegetation & dry Very hot days, cold nights Plants & animals adapted for little moisture Cacti (succulents) Thorny devil, hawks, turtles, camels

18 Tundra Northern Arctic Pole regions Long, cold winters
Little precipitation Short growing season Treeless w/mosses, lichens, shrubs Permafrost Musk Oxen, Snowy Owls, arctic foxes, caribou, migratory birds, insects

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